diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/PPC64.rules | 2 | ||||
| -rw-r--r-- | src/cmd/compile/internal/ssa/rewritePPC64.go | 28 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/PPC64.rules b/src/cmd/compile/internal/ssa/gen/PPC64.rules index 4c766df4b3..8e42bae215 100644 --- a/src/cmd/compile/internal/ssa/gen/PPC64.rules +++ b/src/cmd/compile/internal/ssa/gen/PPC64.rules @@ -1019,6 +1019,8 @@ (MOVWZreg x:(MOVWZloadidx _ _ _)) => x (MOVWreg x:(MOVWload _ _)) => x (MOVWreg x:(MOVWloadidx _ _ _)) => x +(MOVBZreg x:(Select0 (LoweredAtomicLoad8 _ _))) => x +(MOVWZreg x:(Select0 (LoweredAtomicLoad32 _ _))) => x // don't extend if argument is already extended (MOVBreg x:(Arg <t>)) && is8BitInt(t) && isSigned(t) => x diff --git a/src/cmd/compile/internal/ssa/rewritePPC64.go b/src/cmd/compile/internal/ssa/rewritePPC64.go index b278a4cb44..1e6624e906 100644 --- a/src/cmd/compile/internal/ssa/rewritePPC64.go +++ b/src/cmd/compile/internal/ssa/rewritePPC64.go @@ -7093,6 +7093,20 @@ func rewriteValuePPC64_OpPPC64MOVBZreg(v *Value) bool { v.copyOf(x) return true } + // match: (MOVBZreg x:(Select0 (LoweredAtomicLoad8 _ _))) + // result: x + for { + x := v_0 + if x.Op != OpSelect0 { + break + } + x_0 := x.Args[0] + if x_0.Op != OpPPC64LoweredAtomicLoad8 { + break + } + v.copyOf(x) + return true + } // match: (MOVBZreg x:(Arg <t>)) // cond: is8BitInt(t) && !isSigned(t) // result: x @@ -10549,6 +10563,20 @@ func rewriteValuePPC64_OpPPC64MOVWZreg(v *Value) bool { v.copyOf(x) return true } + // match: (MOVWZreg x:(Select0 (LoweredAtomicLoad32 _ _))) + // result: x + for { + x := v_0 + if x.Op != OpSelect0 { + break + } + x_0 := x.Args[0] + if x_0.Op != OpPPC64LoweredAtomicLoad32 { + break + } + v.copyOf(x) + return true + } // match: (MOVWZreg x:(Arg <t>)) // cond: (is8BitInt(t) || is16BitInt(t) || is32BitInt(t)) && !isSigned(t) // result: x |